annotate arogue5/chase.c @ 93:8f7c082fde46

Don't set DESTDIR via configure. DESTDIR ought to be set via option passed to 'make install'.
author John "Elwin" Edwards
date Mon, 26 Aug 2013 19:58:44 -0700
parents 0ed67132cf10
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
63
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
1 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
2 * Code for one object to chase another
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
3 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
4 * Advanced Rogue
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
6 * All rights reserved.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
7 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
8 * Based on "Rogue: Exploring the Dungeons of Doom"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
10 * All rights reserved.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
11 *
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
12 * See the file LICENSE.TXT for full copyright and licensing information.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
13 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
14
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
15 #include <ctype.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
16 #include <limits.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
17 #include "curses.h"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
18 #include "rogue.h"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
19 #define MAXINT INT_MAX
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
20 #define MININT INT_MIN
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
21
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
22 coord ch_ret; /* Where chasing takes you */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
23
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
24
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
25
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
26
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
27
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
28 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
29 * Canblink checks if the monster can teleport (blink). If so, it will
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
30 * try to blink the monster next to the player.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
31 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
32
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
33 bool
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
34 can_blink(tp)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
35 register struct thing *tp;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
36 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
37 register int y, x, index=9;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
38 coord tryp; /* To hold the coordinates for use in diag_ok */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
39 bool spots[9], found_one=FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
40
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
41 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
42 * First, can the monster even blink? And if so, there is only a 50%
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
43 * chance that it will do so. And it won't blink if it is running or
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
44 * held.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
45 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
46 if (off(*tp, CANBLINK) || (on(*tp, ISHELD)) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
47 on(*tp, ISFLEE) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
48 (on(*tp, ISSLOW) && off(*tp, ISHASTE) && !(tp->t_turn)) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
49 tp->t_no_move ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
50 (rnd(12) < 6)) return(FALSE);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
51
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
52
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
53 /* Initialize the spots as illegal */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
54 do {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
55 spots[--index] = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
56 } while (index > 0);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
57
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
58 /* Find a suitable spot next to the player */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
59 for (y=hero.y-1; y<hero.y+2; y++)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
60 for (x=hero.x-1; x<hero.x+2; x++, index++) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
61 /* Make sure x coordinate is in range and that we are
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
62 * not at the player's position
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
63 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
64 if (x<0 || x >= COLS || index == 4) continue;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
65
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
66 /* Is it OK to move there? */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
67 if (step_ok(y, x, NOMONST, tp) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
68 (!isatrap(mvwinch(cw, y, x)) ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
69 rnd(10) >= tp->t_stats.s_intel ||
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
70 on(*tp, ISFLY))) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
71 /* OK, we can go here. But don't go there if
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
72 * monster can't get at player from there
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
73 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
74 tryp.y = y;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
75 tryp.x = x;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
76 if (diag_ok(&tryp, &hero, tp)) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
77 spots[index] = TRUE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
78 found_one = TRUE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
79 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
80 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
81 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
82
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
83 /* If we found one, go to it */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
84 if (found_one) {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
85 char rch; /* What's really where the creatures moves to */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
86
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
87 /* Find a legal spot */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
88 while (spots[index=rnd(9)] == FALSE) continue;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
89
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
90 /* Get the coordinates */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
91 y = hero.y + (index/3) - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
92 x = hero.x + (index % 3) - 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
93
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
94 /* Move the monster from the old space */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
95 mvwaddch(cw, tp->t_pos.y, tp->t_pos.x, tp->t_oldch);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
96
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
97 /* Move it to the new space */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
98 tp->t_oldch = CCHAR( mvwinch(cw, y, x) );
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
99
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
100 /* Display the creature if our hero can see it */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
101 if (cansee(y, x) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
102 off(*tp, ISINWALL) &&
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
103 !invisible(tp))
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
104 mvwaddch(cw, y, x, tp->t_type);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
105
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)